Cold, cough, and nasal congestion in a four-month-old baby are usually caused by a viral infection and often improve with time. Keep the baby well hydrated and use saline nasal drops to help clear the blocked nose. Gentle steam in the room and keeping the baby?s head slightly elevated may also provide relief. Consult a paediatrician before giving any medicine to ensure it is safe for your baby.

Frequent or long-lasting colds may occur due to weak immunity, allergies, or repeated viral infections. Rest well, drink warm fluids, and eat a balanced diet to support recovery. Steam inhalation and warm salt water gargles may help relieve nasal blockage and throat irritation. Consult a doctor if the symptoms last for many days or recur often.

Cold with throat pain and body aches often occur during common respiratory infections. Adequate rest, warm drinks, and avoiding cold or irritating foods may help ease the throat. Keeping the body hydrated and allowing time for recovery is important. Consult a doctor if the symptoms worsen or do not improve within a few days.